Knife



FIG. 1 is a perspective view of a knife showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a front elevational view with the rear being a mirror image thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a knife, as shown and described. 